Thermal protective properties of a firefighter turnout gear with and without an accessory on top of turnout jacket

Kalev Kuklane; Amber M.H. Klomp; Lotte M.G. Jacobs; Ronald Heus

doi:10.25367/cdatp.2024.5.p242-254

Authors

Kalev Kuklane Netherlands Institute of Public Safety (NIPV),Zoetermeer, The Netherlands https://orcid.org/0000-0003-3169-436X
Amber M.H. Klomp Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
Lotte M.G. Jacobs Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
Ronald Heus Team Fire Service Science, Netherlands Academy of Crisis Management and Fire Service Science, Netherlands Institute for Public Safety (NIPV), Arnhem, The Netherlands https://orcid.org/0000-0001-5860-7110

DOI:

https://doi.org/10.25367/cdatp.2024.5.p242-254

Keywords:

firefighter, protective clothing, sizing, bolero, insulation, evaporative resistance, burn injury risk

Abstract

Thermal insulation and evaporative resistance of protective clothing are basic parameters that influence thermal stress and human performance. During training, the firefighter instructors wear an accessory (bolero) to discriminate them from the exercising personnel. Such boleros may be available at training sites in one size only. At one training site an instructor repeatedly reported pain sensation and first degree burns, while at another site problems did not occur, while similar amount of fuel in fires and comparable weather conditions were expected to lead to the same heat and radiation load. The other suspected reasons for pain and burns could be the aging effect on clothing properties, different materials in turnout gear compared to the materials in original procurement or the effect of the size of the added bolero. This limited study measured the thermal properties of the protective ensemble used by the firefighters today and focused on the case of the influence of clothing and bolero size on thermal insulation by the means of a thermal manikin. The tests complemented test series on firefighter ensembles commonly used in different incident scenarios. Additionally, a correct size and one size bigger ensemble were tested both with and without bolero. Use of bolero showed 3.6-6.7% insulation increase for size L, and no change or slight reduction for XL, indicating increasing thermal risks during exposure to heat and flames when protective layers get compressed by using wrong sizes.

References

Kuklane, K.; Eggeling, J.; Kemmeren, M.; Heus, R. A Database of Static Thermal Insulation and Evaporative Resistance Values of Dutch Firefighter Clothing Items and Ensembles. Biology 2022, 11, 1813. DOI: https://doi.org/10.3390/biology11121813.

Kuklane, K.; Levels, K.; Kistemaker, L.; Mol, E.; Tanck, I.; Heus R. Heat stress prediction for simulated rescue activities. In Proceedings of 20th International Conference on Environmental Ergonomics (ICEE2024), Jeju, South Korea, pp. 145-146, June 3-7, 2024.

Havenith, G.; Fiala, D. Thermal indices and thermophysiological modeling for heat stress. In Comprehensive Physiology Wiley Online Library; John Wiley & Sons, Ltd, 2016; Vol. 6, pp. 255–302. DOI: https://doi.org/10.1002/cphy.c140051.

Kingma, B.R.M.; Steenhoff, H.; Toftum, J.; Daanen, H.A.M.; Folkerts, M.A.; Gerrett, N.; Gao, C.; Kuklane, K.; Petersson, J.; Halder, A.; et al. ClimApp–integrating personal factors with weather forecasts for individualised warning and guidance on thermal stress. Int. J. Environ. Res. Public Health 2021, 18, 11317. DOI: https://doi.org/10.3390/ijerph182111317.

Xu, X.; Rioux, T.P.; Gonzalez, J.; Hansen, E.O.; Castellani, J.W.; Santee, W.R.; Karis, A.J.; Potter, A.W. A digital tool for prevention and management of cold weather injuries – Cold Weather Ensemble Decision Aid (CoWEDA). Int. J. Biometeorol. 2021, 65, 1415–1426. DOI: https://doi.org/10.1007/s00484-021-02113-0.

Jussila, K.; Kekäläinen, M.; Simonen, L.; Mäkinen, H. Determining the optimum size combination of three-layered cold protective clothing in varying wind conditions and walking speeds: Thermal manikin and 3D body scanner study. J. Fashion Technol. Textile Eng. 2015, 3, 1–9. https://dx.doi.org/10.4172/2329-9568.1000120.

Kuklane, K. Protection of Feet in Cold Exposure. Industrial Health. 2009, 47(3) 242-253. DOI: https://doi.org/10.2486/indhealth.47.242.

Chen, Y.S.; Fan, J.; Qian, X.; Zhang, W. Effect of garment fit on thermal insulation and evaporative resistance. Text. Res. J. 2004, 74, 742–748. DOI: https://doi.org/10.1177/004051750407400814.

Psikuta, A.; Mert, E.; Annaheim, S.; Rossi, R.M. Local air gap thickness and contact area models for realistic simulation of human thermo-physiological response. Int. J. Biometeorol. 2018, 62, 1121-1134. DOI: https://doi.org/10.1007/s00484-018-1515-5.

Špelić, I.; Rogale, D.; Bogdanić, A.M. The study on effects of walking on the thermal properties of clothing and subjective comfort. AUTEX Research Journal, 2020, 20(3), 228-243. DOI: https://doi.org/10.2478/aut-2019-0016.

Veselá, S.; Psikuta, A.; Frijns, A.J.H. Local clothing thermal properties of typical office ensembles under realistic static and dynamic conditions. Int. J. Biometeorol. 2018, 62, 2215-2229. DOI: https://doi.org/10.1007/s00484-018-1625-0.

Kuklane, K.; Heidmets, S.; Johansson, T. Improving thermal comfort in an orthopaedic aid: Better Boston Brace for scoliosis patients. In Proceedings of the 6th International Meeting on Manikins and Modelling (6I3M), Hong Kong Polytechnic University, Hong Kong, China; pp. 343-351, October 16-18, 2006.

EN 342:2017; Protective clothing — Ensembles and garments for protection against cold. European Committee for Standardization: Brussels, Belgium, 2017.

ISO 15831:2004; Clothing — Physiological effects — Measurement of thermal insulation by means of a thermal manikin. International Organization for Standardization: Geneva, Switzerland, 2004.

ISO 9920:2009; Ergonomics of the thermal environment — Estimation of the thermal insulation and evaporative resistance of a clothing ensemble. International Standards Organization: Geneva, Switzerland, 2009.

Oliveira, A.V.M.; Gaspar, A.R.; Quintela, D.A. Measurements of clothing insulation with a thermal manikin operating under the thermal comfort regulation mode. Comparative analysis of the calculation methods. Eur. J. Appl. Physiol. 2008, 104, 679-688. DOI: https://doi.org/10.1007/s00421-008-0824-5.

ASTM F2370-16; Standard test method for measuring the evaporative resistance of clothing using a sweating manikin. American Society of Testing and Materials International (ASTM): Philadelphia, PA, USA, 2016.

Wang, F.; Kuklane, K.; Gao, C.; Holmér, I. Development and validity of a universal empirical equation to predict skin surface temperature on thermal manikins. J. Therm. Biol. 2010, 35, 197–203. DOI: https://doi.org/10.1016/j.jtherbio.2010.03.004.

EN 17528:2022; Clothing — Physiological effects — Measurement of water vapour resistance by means of a sweating manikin. European Committee for Standardization: Brussels, Belgium, 2022.

Havenith, G.; Kuklane, K.; Fan, J.; Hodder, S.; Ouzzahra, Y.; Lundgren, K.; Au, Y.; Loveday, D. A database of static clothing thermal insulation and vapor permeability values of non-western ensembles for use in ASHRAE standard 55, ISO 7730, and ISO 9920. ASHRAE Trans. 2015, 121, 197–215. Available online: http://www.techstreet.com/ashrae/products/1894263#jumps

EN 469:2020; Protective clothing for firefighters — Performance requirements for protective clothing for firefighting activities. European Committee for Standardization: Brussels, Belgium, 2020.

ISO 21942:2019; Station uniform for firefighters. International Organization for Standardization: Geneva, Switzerland, 2019.

ISO 11079:2007; Ergonomics of the thermal environment — Determination and interpretation of cold stress when using required clothing insulation (IREQ) and local cooling effects. International Organization for Standardization: Geneva, Switzerland, 2007.

ISO 7933:2004; Ergonomics of the thermal environment — Analytical determination and interpretation of heat stress using calculation of the predicted heat strain. International Organization for Standardization: Geneva, Switzerland, 2004.

Psikuta, A.; Mert, E.; Annaheim, S.; Rossi, R.M. Local air gap thickness and contact area models for realistic simulation of human thermo-physiological response. Int. J. Biometeorol. 2018, 62, 1121–1134. DOI: https://doi.org/10.1007/s00484-018-1515-5.

Baczek, M. B.; Hes, L. The effect of moisture on thermal resistance and water vapour permeability of Nomex fabrics. Journal of Materials Science and Engineering A, 2011, 1, 358-366.

Kuklane, K.; Levels, K.; de Weerd, M.; Teunissen, L.; Eggeling, J.; Kemmeren, M. Comparison of clothing measurements on 2 manikins in the light of size and fit. In 10th European Conference of Protective Clothing. (ECPC2023), Arnhem, May 9-12, 2023, pp. 60-61. DOI: https://doi.org/10.5281/zenodo.7944474.

Psikuta, A.; Sherif, F.; Mert, E.; Mandal, S.; Annaheim, S. Effect of body postures on interaction between firefighters’ clothing and amount of protection. In 15th Joint International Conference on Innovation in Clothing (CLOTECH 2024), Sept. 5-6, 2024, Dresden, Germany.

Mokhtar, S.; Kyosev, Y. Dynamic fit, deformation and interaction with body of karateka uniforms (Karate-Gi) – Preliminary investigation through 4D body scanning technology. In 15th Joint International Conference on Innovation in Clothing (CLOTECH 2024), Sept. 5-6, 2024, Dresden, Germany.

McDonald, C.; Dabolina, I.; Lapkovska, E.; Hatch, K. Posture – walk in PARCS? In 15th Joint International Conference on Innovation in Clothing (CLOTECH 2024), Sept. 5-6, 2024, Dresden, Germany.